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rewona [7]
3 years ago
10

You can ride your bike around your block twice and the whole neighborhood once in 10 minutes. You can ride your bike around your

block twice and the whole neighborhood 4 times in 31 minutes. How long does it take you to ride around the neighborhood?
Mathematics
1 answer:
pashok25 [27]3 years ago
3 0

Answer:

7 minutes

Step-by-step explanation:

okay so lets make blocks = x and neighborhood = y

2x + y =10

2x + 4y = 31

multiply the top equation by -1 so we can single out y

-2x - y = -10

2x + 4y = 31

combine the two equations

3y = 21

since the x's have canceled each other out, just divide both sides by 3 to get a single y

y = 7

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A vehicle uses 1 7/8 gallons of gasoline to travel 56 1/4 miles. At this rate, how many miles can the vehicle travel per gallon
sweet [91]

Answer:

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Step-by-step explanation:

In this context, "per" means "divided by", so to find miles per gallon, divide miles by gallons:

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The vehicle can travel 30 miles per gallon of gas.

_____

My calculator divides mixed numbers directly, as many graphing calculators do. If you're working this out by hand, you can convert to improper fractions, then multiply the numerator by the inverse of the denominator.

  (56 1/4)/(1 7/8) = (225/4)/(15/8)

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2 years ago
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